Document Legalization
Official document authentication for use in Thailand. We handle apostille certification, notarization, and embassy or consulate legalization for foreign documents.
Get a free consultationRequirements
- Original document or certified copy (depending on document type)
- Legible document with no alterations or corrections
- For apostille: document must be issued in a Hague Convention member country
- For embassy legalization: document must first be notarized then legalized by the relevant ministry
- Translation into Thai or English if the document is in another language
Our Process
- 1
Identify what you need
Different visa types and purposes require different documents. Common items include birth certificates, marriage certificates, criminal background checks, and degree certificates.
- 2
Notarization (if required)
A notary public or authorized official certifies your document as a true and accurate copy.
- 3
Apostille or ministry authentication
For Hague Convention countries, an apostille confirms the document for international use. For others, the document is legalized through the relevant government ministry.
- 4
Embassy or consulate legalization
Some Thai processes require a final legalization stamp from the Thai embassy in the issuing country.
- 5
Certified translation
If your document is not in Thai or English, a certified translator provides an accepted translation.
Many Thai visa and immigration processes require foreign documents to be officially authenticated before they are accepted. This process is known as legalization or apostille certification, and the exact steps depend on the type of document and the country that issued it.
Common documents that require legalization include criminal background checks (for retirement and long-term visas), birth and marriage certificates (for dependent visas and name change processes), university degrees (for work permits), and company registration documents (for business visas).
Visa Siam coordinates the entire legalization chain on your behalf, whether that means obtaining an apostille from your home country’s authority or navigating a multi-step embassy legalization process.
Disclaimer
Visa rules and requirements can change and it takes time to update our website.
Please refer to the official sources below: